/* --- Base Styles --- */
:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --bg: #0f172a;
  --card-bg: rgba(30, 41, 59, 0.4);
  --glass-bg: rgba(255, 255, 255, 0.03);
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.08);
  --accent: #10b981;
  --danger: #ef4444;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Outfit", sans-serif;
  background-color: var(--bg);
  background-image: radial-gradient(
      at 0% 0%,
      rgba(99, 102, 241, 0.15) 0px,
      transparent 50%
    ),
    radial-gradient(at 100% 0%, rgba(16, 185, 129, 0.15) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(99, 102, 241, 0.1) 0px, transparent 50%);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  padding: 2rem 1rem;
  -webkit-font-smoothing: antialiased;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* --- Layout --- */
.container {
  max-width: 1000px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 3rem;

  h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #6366f1, #10b981);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
  }
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* --- Components --- */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  height: 100%;
  animation: slideUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;

  h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text);
    font-weight: 700;

    svg {
      color: var(--primary);
    }
  }
}

.summary-card {
  background: linear-gradient(
    135deg,
    rgba(99, 102, 241, 0.1) 0%,
    rgba(30, 41, 59, 0.4) 100%
  );
  animation-delay: 0.1s;
}

.config-card {
  animation-delay: 0.2s;
}

.input-group {
  margin-bottom: 1.5rem;

  label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  input,
  select {
    width: 100%;
    padding: 0.85rem 1.15rem;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border);
    border-radius: 0.85rem;
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);

    &:focus {
      outline: none;
      border-color: var(--primary);
      background: rgba(15, 23, 42, 0.6);
      box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
      transform: translateY(-1px);
    }

    &:hover {
      border-color: rgba(255, 255, 255, 0.2);
    }
  }

  &.compact {
    margin-bottom: 0;
  }
}

.btn {
  cursor: pointer;
  padding: 0.85rem 1.75rem;
  border-radius: 0.85rem;
  border: none;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: inherit;
  user-select: none;

  &.primary {
    color: white;
    background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);

    &:hover {
      background: linear-gradient(135deg, #4f46e5 0%, var(--primary) 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    }

    &:active {
      transform: translateY(0);
    }
  }

  &.ghost {
    background: transparent;
    color: var(--text-muted);
    padding: 0.65rem;

    &:hover {
      color: var(--danger);
      background: rgba(239, 68, 68, 0.1);
      transform: scale(1.1);
    }
  }

  &.outline {
    background: transparent;
    color: var(--primary);
    border: 1px dashed var(--primary);
    width: 100%;
    margin-top: 1.5rem;

    &:hover {
      background: rgba(99, 102, 241, 0.08);
      border-style: solid;
      transform: translateY(-1px);
    }
  }
}

/* --- Specific Sections --- */
.budget-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 400px;
  overflow-y: auto;
  padding-right: 0.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;

  .budget-item {
    display: grid;
    grid-template-columns: 1fr 110px 90px 40px;
    gap: 0.75rem;
    align-items: center;
    animation: slideIn 0.3s ease-out;
/* 
    select {
      font-size: 0.85rem;
      padding: 0.5rem;
    } */
  }

  @keyframes slideIn {
    from {
      opacity: 0;
      transform: translateX(-10px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  @keyframes slideUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

.results {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.result-card {
  background: rgba(255, 255, 255, 0.02);
  border-radius: 1.25rem;
  padding: 1.5rem;
  border-left: 4px solid var(--primary);
  border-right: 1px solid var(--border);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);

  &:hover {
    background: rgba(255, 255, 255, 0.04);
    transform: translateX(8px);
    border-left-width: 6px;
  }

  &.success {
    border-left-color: var(--accent);
    background: linear-gradient(
      90deg,
      rgba(16, 185, 129, 0.05) 0%,
      rgba(255, 255, 255, 0.02) 100%
    );
  }

  .label {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }

  .value {
    font-size: 2.25rem;
    font-weight: 800;
    margin-top: 0.5rem;
    letter-spacing: -0.02em;
    background: linear-gradient(to bottom, #fff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .details {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
    display: flex;
    gap: 0.75rem;
    align-items: center;

    span:last-child {
      color: var(--accent);
      font-weight: 600;
    }
  }
}

.exchange-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2rem;
  text-align: center;
  padding: 1rem;
  border-top: 1px solid var(--border);

  .loading {
    color: var(--primary);
  }

  .error {
    color: var(--danger);
  }
}
/* --- Detailed Table --- */
.detailed-section {
  margin-top: 3rem;
  animation-delay: 0.3s;

  .filter-controls {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 2rem;
    align-items: center;
    padding: 0.4rem 1rem;
    background: var(--glass-bg);
    border-radius: 0.9rem;
    border: 1px solid var(--border);

    label {
      margin: 0;
      color: var(--text-muted);
      font-size: 0.9rem;
      font-weight: 600;
    }

    select {
      width: auto;
      min-width: 180px;
      font-size: 0.9rem;
      padding: 0.5rem;
    }
  }
}
.expense-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;

  th {
    text-align: left;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    background: rgba(255, 255, 255, 0.01);
  }

  td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
    white-space: nowrap;
  }

  tr {
    &:last-child td {
      border-bottom: none;
    }

    &:hover td {
      background: rgba(255, 255, 255, 0.03);
      color: var(--text);
    }
  }
}

.filtered-total {
  margin-top: 2rem;
  padding: 1.75rem 2.25rem;
  background: linear-gradient(
    135deg,
    rgba(99, 102, 241, 0.15) 0%,
    rgba(16, 185, 129, 0.1) 100%
  );
  border-radius: 1.25rem;
  border: 1px solid rgba(16, 185, 129, 0.2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-md);

  .label {
    font-weight: 700;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.85rem;
  }

  .value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent);
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
  }
}
/* --- Modal --- */
dialog {
  border: none;
  border-radius: 2rem;
  padding: 0;
  background: #1e293b;
  border: 1px solid var(--border);
  box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.8);
  max-width: 500px;
  width: 90%;
  margin: auto;
  overflow: hidden;

  &::backdrop {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .modal-header {
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid var(--border);
    h2 {
      margin: 0;
      color: var(--text);
    }
  }

  .modal-body {
    padding: 2rem;
  }

  .modal-footer {
    padding: 1rem 2rem 2rem;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
  }
}

/* --- Tags --- */
.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag-essential {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.tag-housing {
    background: rgba(168, 85, 247, 0.15);
    color: #c084fc;
    border: 1px solid rgba(168, 85, 247, 0.2);
}

.tag-transport {
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.tag-health {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.tag-lifestyle {
    background: rgba(236, 72, 153, 0.15);
    color: #f9a8d4;
    border: 1px solid rgba(236, 72, 153, 0.2);
}

.tag-savings {
    background: rgba(34, 197, 94, 0.15);
    color: #86efac;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.tag-other {
    background: rgba(148, 163, 184, 0.15);
    color: #cbd5e1;
    border: 1px solid rgba(148, 163, 184, 0.2);
}

/* --- GitHub Corner --- */
.github-corner {
  &:hover .octo-arm {
    animation: octocat-wave 560ms ease-in-out;
  }

  svg {
    fill: #151513;
    color: #fff;
    position: absolute;
    top: 0;
    right: 0;
    border: 0;
    width: 80px;
    height: 80px;
  }
  .octo-arm {
    transform-origin: 130px 106px;
  }
}

@keyframes octocat-wave {
  0%,
  100% {
    transform: rotate(0);
  }

  20%,
  60% {
    transform: rotate(-25deg);
  }

  40%,
  80% {
    transform: rotate(10deg);
  }
}

@media (max-width: 500px) {
  .github-corner:hover .octo-arm {
    animation: none;
  }

  .github-corner .octo-arm {
    animation: octocat-wave 560ms ease-in-out;
  }

  .budget-item {
    grid-template-columns: 1fr 1fr;

    .remove-item {
      grid-column: span 2;
      justify-self: end;
    }
  }
}